High Bulk Density White Fused Alumina Corundum Aluminium Oxide WA WFA
White fused alumina is produced by bayer alumina in an electric arc furnace at high temperatures. The product shows higher hardness, higher bulk density and good cleanliness. The materials can be used to grind high carbon steel, high speed steel, chilled steel and so on. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.
White Corundum/White Aluminum Oxide/White Fused Alumina are applied into many industrial fields due to its stable and great physical and chemical properties. It can be used for making bonded/coated abrasive tools, for grinding, polishing, lapping, blasting, precision casting, and refractory industry, aerospace industry, mobile phone and electronic industry, jewelry industry, hardware industry, ceramics, automobile parts, bearing, powder metallurgy and so on.
| Physical Characteristics |
| Item |
Basic mineral |
Crystal system |
Crystal color |
Mohs
hardness |
Density |
| White Fused Alumina |
α- Al2O3 |
Hexagonal |
White |
9 |
≥3.90g/cm3 |
| Item |
Micro hardness |
Electrical
resistivity |
Grinding ability(compared with
diamond as one) |
Linear expansion
coefficient(when 900ºC α•10-6k-1) |
| White Fused Alumina |
HV2200-2300 |
1014-1016Ω•cm |
0.12 |
8.3 |
The grit sizes of White Corundum/White Aluminum Oxide/White Fused Alumina WA WFA are produced according to national standard and international standard, and can be also produced according to customers' requirements.
| Chemical Composition |
| GB/T 2479v-2008 |
| Type |
Grit Size |
Bulk Density |
Whiteness |
Chemical composition (%, by weight) |
| Al2O3 |
Na2O |
| WA |
F120-F220 |
≥1.80g/cm3 |
≥80% |
≥99.10 |
≤0.40 |
Note: Special requirements on chemical composition and other terms can be satisfied through discussion.
Product package: 25kg P. P Bag+1MT Jumbo Bag, 25kg Paper Bag+1 MT Pallet, or according to customers' requirements.
Top Quality WFA WA Aluminum Oxide White Corundum Fused Alumina with Competitive Price
White fused alumina is produced by bayer alumina in an electric arc furnace at high temperatures. The product shows higher hardness and lower toughness than that of brown aluminium oxide. The materials are used to grind high carbon steel, high speed steel and chilled steel. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.
| Grain Usages and Types |
| Usage |
For vitrified wheels |
For organic wheels |
For coated abrasives |
For refractory materials |
| Type |
WA |
WA-B |
WA-P |
WA-R |
| Physical Characteristics |
| Item |
Basic mineral |
Crystal system |
Crystal color |
Mohs
hardness |
Density |
| White aluminum oxide |
α- Al2O3 |
Hexagonal |
White |
9 |
≥3.90g/cm3 |
| Item |
Micro hardness |
Electrical
resistivity |
Grinding ability(compared with
diamond as one) |
Linear expansion
coefficient(when 900ºC α•10-6k-1) |
| White aluminium oxide |
HV2200-2300 |
1014-1016Ω•cm |
0.12 |
8.3 |
| Chemical Composition |
| GB/T 2479-2008 |
| Type |
Grit |
Chemical composition (%, by weight) |
| Al2O3 |
Na2O |
| WA |
F4-F80 |
≥99.10 |
≤0.35 |
| F90-F150 |
≥99.10 |
≤0.40 |
| F180-F220 |
≥98.60 |
≤0.50 |
| F230-F800 |
≥98.30 |
≤0.60 |
| F1000-F1200 |
≥98.10 |
≤0.70 |
| WA-B |
F4-F80 |
≥99.00 |
≤0.50 |
| F90-F150 |
≥99.00 |
≤0.60 |
| F180-F220 |
≥98.50 |
≤0.60 |
| WA-P |
P12-P80 |
≥99.10 |
≤0.35
≤0.40 |
| P100-P150 |
≥99.10 |
| P180-P220 |
≥98.60 |
≤0.50 |
| P240-P800 |
≥98.30 |
≤0.60 |
| P1000-P1200 |
≥98.10 |
≤0.70 |
| P1500-P2500 |
≥97.50 |
≤0.90 |
| WA-R |
0-1mm |
≥99.00 |
≤0.50 |
| 1-3mm |
≥99.00 |
≤0.50 |
| 3-5mm |
≥99.00 |
≤0.50 |
| 5-8mm |
≥99.00 |
≤0.50 |
Note: Special requirements on chemical composition and other terms can be satisfied through discussion.
Packaging & Shipping:
1. 25KG P.P BAG+ 1MT JUMBO BAG
2. 25KG P.P BAG+ 1MT PALLET
3. 25KG PAPER BAG+ 1MT PALLET
4. According to customers' requirements
5. Free samples or Sample orders usually shipped by Express like FedEx/TNT/DHL/UPS/EMS...
Our Advantages:
1.With many years of export experiences and good reputation, we provide clients with stable product quality and professional technical advice.
2.OEM, ODM services and our own brand (KUMTHAI) are provided according to customers' requirements.
3. Management System Certification: ISO 9001, ISO 9000, ISO 14001, ISO 14000
4. Products with different grades and sizes can meet different market users' demand for different product quality and prices.
5. We guarantee that our products are good quality with competitive prices, and delivery in time.
6. Technical research and development strength: The company's employees have the relevant discipline background of abrasive grains and superhard materials, and know more about abrasives and grinding. They would like to provide better services for customers to meet their different needs. What's more, the company invites senior research experts from Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. and Henan University of Technology as product consultants, which can help to achieve in-depth product technical cooperation with customers and better matching demands, combined with China's industrial advantages.
Our Services:
1. Your inquiries will be replied in 24 working hours;
2. Free samples offered in certain quantity and delivered within 10 days;
3. PL, INV, MSDS and C.O. or FORM-E FTA...you need can be provided at the top speed;
4. Any questions about products and technology will be answered sincerely and professionally.
5. Related products sourcing services.
FAQ:
Q1: Can you offer free samples?
A: Yes, free samples can be offered in certain quantity, but big samples and special products with charge.
Q2: Can I have a sample order for your products?
A: Yes, we welcome sample orders to test and check the quality.
Q3: What is your delivery time?
A: Sample order: Within 7 working days
Mass order: Within 25 days after 30% deposit received for conventional products. Negotiation for special products.
Q4: What is your payment terms?
A: T/T, D/P, L/C and so on.
Q5: Do you offer customized products according to customer's requirements?
A: Yes, OEM, ODM services and our own brand (KUMTHAI) are provided according to customers' requirements.
Q6: Are all your products on the website?
A: Not all the products on the website. For some related products or the sizes that are not included on the website, please make an inquiry separately.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Audited Supplier 
){kind=link}
){kind=link}